- All sections
- D - Textilespaper
- D21H - Pulp compositionspreparation thereof not covered by subclasses , impregnating or coating of papertreatment of finished paper not covered by class or subclass paper not otherwise provided for
- D21H 17/22 - Proteins
Patent holdings for IPC class D21H 17/22
Total number of patents in this class: 76
10-year publication summary
|
6
|
8
|
5
|
2
|
2
|
4
|
4
|
2
|
7
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stora Enso Oyj | 1665 |
6 |
| Novozymes A/S | 3338 |
4 |
| Solenis Technologies, L.P. | 313 |
4 |
| Buckman Laboratories International, Inc. | 242 |
3 |
| Meiji Seika Pharma Co., Ltd. | 254 |
3 |
| The Penn State Research Foundation | 1569 |
3 |
| SCA Forest Products AB | 81 |
3 |
| Green Sol-gel Ltd | 7 |
3 |
| CJ Cheiljedang Corporation | 3508 |
2 |
| Corn Products Development, Inc. | 679 |
2 |
| GRUPPO CORDENONS S.p.A. | 48 |
2 |
| HaskoningDHV Nederland B.V. | 76 |
2 |
| North Carolina State University | 1586 |
2 |
| Pratt Corrugated Holdings, Inc. | 298 |
2 |
| Evertree | 81 |
2 |
| Lactips | 15 |
2 |
| Revoltech GmbH | 8 |
2 |
| Centre National de La Recherche Scientifique | 10716 |
1 |
| Georgia Tech Research Corporation | 2835 |
1 |
| Concordia University | 105 |
1 |
| Other owners | 26 |